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CHASSIS ELECTRICAL - Ignition Switch and Immobilizer System 54A-13 ENCRYPTED CODE REGISTRATION METHOD or if the immobilizer-ECU has been replaced, you will need to register the encrypted codes for each ignition key being used into the immobilizer-ECU. (A maximum of eight different encrypted codes can be registered.) Moreover, when the immobilizer-ECU has been replaced, you will need to use the MUT-II to register the password that the user specifies into the immobilizer-ECU. (Refer to the MUT-II instruction manual for instructions on using the MUT-II.) Because registering of the encrypted codes is carried out after all previously-registered codes have been erased, you should have ready all of the ignition keys that have already been registered. 1. Connect the MUT-II to the diagnosis connector. Caution Turn the ignition switch to LOCK (OFF) position before connecting or disconnecting the MUT-II. 2. Check that diagnosis code No. P1160 is not being generated by the each engine-ECU. If it is being generated check according to the Troubleshooting Procedures. (Refer to GROUP 13A - Troubleshooting.) 3 Use the ignition key that is to be registered to turn on the ignition switch. 4. Use the MUT-II to register the encrypted code. If you are registering two or more codes, use the next key to the registered to turn on the ignition switch without disconnecting the MUT-II. 5. Turn off the ignition switch. 6. Check that the engine can be started with each of the ignition keys. 7. Check the diagnosis output from the each engine-ECU, and erase code No. P1160 if it appears. (Refer to GROUP 13A - Troubleshooting.) 8. Disconnect the MUT-II. This completes the registration operation. dummy |